/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Other licenses:
 * -----------------------------------------------------------------------------
 * Commercial licenses for this work are available. These replace the above
 * ASL 2.0 and offer limited warranties, support, maintenance, and commercial
 * database integrations.
 *
 * For more information, please visit: http://www.jooq.org/licenses
 *
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 */
package org.jooq.impl;

import static org.jooq.impl.DSL.*;
import static org.jooq.impl.Keywords.*;
import static org.jooq.impl.Names.*;
import static org.jooq.impl.SQLDataType.*;
import static org.jooq.impl.Tools.BooleanDataKey.*;
import static org.jooq.SQLDialect.*;

import org.jooq.*;
import org.jooq.impl.*;

import java.util.*;

/**
 * The <code>CREATE SCHEMA IF NOT EXISTS</code> statement.
 */
@SuppressWarnings({ "unused" })
final class CreateSchemaImpl
extends
    AbstractRowCountQuery
implements
    CreateSchemaFinalStep
{

    private static final long serialVersionUID = 1L;

    private final Schema  schema;
    private final boolean createSchemaIfNotExists;
    

    CreateSchemaImpl(
        Configuration configuration,
        Schema schema,
        boolean createSchemaIfNotExists
    ) {
        super(configuration);

        this.schema = schema;
        this.createSchemaIfNotExists = createSchemaIfNotExists;
    }

    final Schema  $schema()                  { return schema; }
    final boolean $createSchemaIfNotExists() { return createSchemaIfNotExists; }

    // -------------------------------------------------------------------------
    // XXX: QueryPart API
    // -------------------------------------------------------------------------



    private static final Clause[]            CLAUSES                    = { Clause.CREATE_SCHEMA };
    private static final Set<SQLDialect>     NO_SUPPORT_IF_NOT_EXISTS   = SQLDialect.supportedBy(DERBY, FIREBIRD);






    private final boolean supportsIfNotExists(Context<?> ctx) {
        return !NO_SUPPORT_IF_NOT_EXISTS.contains(ctx.family());
    }

    @Override
    public final void accept(Context<?> ctx) {














        accept0(ctx);
    }

    private final void accept0(Context<?> ctx) {
        if (createSchemaIfNotExists && !supportsIfNotExists(ctx)) {
            Tools.beginTryCatch(ctx, DDLStatementType.CREATE_SCHEMA);
            accept1(ctx);
            Tools.endTryCatch(ctx, DDLStatementType.CREATE_SCHEMA);
        }
        else {
            accept1(ctx);
        }
    }

    private final void accept1(Context<?> ctx) {













            accept2(ctx);
    }

    private final void accept2(Context<?> ctx) {
        ctx.start(Clause.CREATE_SCHEMA_NAME)
           .visit(K_CREATE);






            ctx.sql(' ').visit(K_SCHEMA);

        if (createSchemaIfNotExists && supportsIfNotExists(ctx))
            ctx.sql(' ').visit(K_IF_NOT_EXISTS);

        ctx.sql(' ').visit(schema)
           .end(Clause.CREATE_SCHEMA_NAME);
    }

    @Override
    public final Clause[] clauses(Context<?> ctx) {
        return CLAUSES;
    }


}
